Hi - I am sincerely looking at a provider who can do HVAC tuning for my furnace, now that winter's setting in. Normally, it's approx. $ here in East coast. I have talked to and few visited my place but overall my impression has not been good. Every one of them offers the same set of inspection steps but each time I tell them BEFOREHAND that I would like to review the air duct pressures, the blower speeds, etc. since I strongly feel it's not correct they all tell me it's part of the inspection but in reality all they do is concentrate on the furnace equipment 99% and finally give vague excuses or reasons why it's not required, etc. Somehow I am getting the impression that out of all the various types of services like plumbing, electricity, carpentry, etc. the HVAC is perhaps the most vague and disjointed. I request you to please direct me on what and which type of service I really need here. The bottom line is EACH guy I called tried to hard sell me to buy a new furnace and AC instead of telling me the issue with all these rebates and efficiency levels, etc. kicked in! Just so all understands my furnace and AC is quite new, bought approx 2006.